390720367 has 4 divisors (see below), whose sum is σ = 413703936. Its totient is φ = 367736800.

The previous prime is 390720359. The next prime is 390720377. The reversal of 390720367 is 763027093.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 390720367 - 2³ = 390720359 is a prime.

It is a super-2 number, since 2×390720367² = 305324810377229378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390720377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11491759 + ... + 11491792.

It is an arithmetic number, because the mean of its divisors is an integer number (103425984).

Almost surely, 2^390720367 is an apocalyptic number.

390720367 is a deficient number, since it is larger than the sum of its proper divisors (22983569).

390720367 is a wasteful number, since it uses less digits than its factorization.

390720367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22983568.

The product of its (nonzero) digits is 47628, while the sum is 37.

The square root of 390720367 is about 19766.6478442856. The cubic root of 390720367 is about 731.0639187366.

The spelling of 390720367 in words is "three hundred ninety million, seven hundred twenty thousand, three hundred sixty-seven".